Update: Added parametric OpenSCAD file > SAP temp tower.scad
Customize your temperature calibration tower via thingiverse's Open in Customizer or open the scad file in OpensCAD.
Be sure to edit the gcodes to match your customized tower

Simple 5mm temperature calibration tower for PLA

Included modifier for PrusaSlicer to set tempratures at proper layer heights
Open, (edit according to your prefered temps and floor count), and copy the text in SAP_temp_tower_gcode_modifier.txt.
Make a new Printer Setting and paste the GCODE modifier in
Custom G-code > Before layer change gcode
Save setting and slice the .stl

Your printer will print the model at the set temperature automatically.